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Finding the Fourth Proportional to 283,859.61, 425,411.14 and 134,139.65

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Solution

The fourth proportional to 283,859.61, 425,411.14 and 134,139.65 is: 201,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,859.61 : 425,411.14 = 134,139.65 : x
  2. Step 2: Convert to fraction form
    283,859.61/425,411.14 = 134,139.65/x
  3. Step 3: Cross multiply
    283,859.61x = 425,411.14 × 134,139.65
  4. Step 4: Simplify right side
    283,859.61x = 57,064,499,214.81
  5. Step 5: Solve for x
    x = 57,064,499,214.81/283,859.61
  6. Step 6: Final answer
    x = 201,030.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.